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Problems

673 problems

Has videoPremium onlyReset
Array2,237String877Hash Table797Math691Dynamic Programming673Sorting508Greedy485Binary Search357Depth-First Search338Database308Bit Manipulation286Matrix279Tree264Breadth-First Search257Prefix Sum252All topics

673 results

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TitleSolutionAcceptDifficultyTopics
1191. K-Concatenation Maximum SumVideo
Solution26.5%Medium
Array, Dynamic Programming· 1 company
1216. Valid Palindrome IIIVideoPremium
Solution49.2%Hard
Dynamic Programming, String· 3 companies
1218. Longest Arithmetic Subsequence of Given DifferenceVideo
Solution54.5%Medium
Array, Dynamic Programming +1· 2 companies
1220. Count Vowels PermutationVideo
Solution61.7%Hard
Dynamic Programming· 1 company
1223. Dice Roll SimulationVideo
Solution51.4%Hard
Array, Dynamic Programming· 2 companies
1227. Airplane Seat Assignment ProbabilityVideo
Solution67.3%Medium
Brainteaser, Dynamic Programming +2· 2 companies
1230. Toss Strange CoinsVideoPremium
Solution58.1%Medium
Array, Dynamic Programming +2· 1 company
1235. Maximum Profit in Job SchedulingVideo
Solution54.8%Hard
Array, Binary Search +2· 22 companies
1246. Palindrome RemovalVideoPremium
Solution46.4%Hard
Array, Dynamic Programming· 1 company
1255. Maximum Score Words Formed by LettersVideo
Solution81.9%Hard
Array, Backtracking +4· 3 companies
1259. Handshakes That Don't CrossVideoPremium
Solution61.1%Hard
Dynamic Programming, Math· 1 company
1262. Greatest Sum Divisible by ThreeVideo
Solution57.1%Medium
Array, Dynamic Programming +2· 7 companies
1269. Number of Ways to Stay in the Same Place After Some StepsVideo
Solution50.2%Hard
Dynamic Programming· 1 company
1277. Count Square Submatrices with All OnesVideo
Solution80.7%Medium
Array, Dynamic Programming +1· 6 companies
1278. Palindrome Partitioning IIIVideo
Solution62.2%Hard
Dynamic Programming, String
1289. Minimum Falling Path Sum IIVideo
Solution63.2%Hard
Array, Dynamic Programming +1· 3 companies
1301. Number of Paths with Max ScoreVideo
Solution63.4%Hard
Array, Dynamic Programming +1· 4 companies
1312. Minimum Insertion Steps to Make a String PalindromeVideo
Solution74.3%Hard
Dynamic Programming, String· 7 companies
1320. Minimum Distance to Type a Word Using Two FingersVideo
Solution72.2%Hard
Dynamic Programming, String· 2 companies
1326. Minimum Number of Taps to Open to Water a GardenVideo
Solution50.7%Hard
Array, Dynamic Programming +1· 13 companies
1334. Find the City With the Smallest Number of Neighbors at a Threshold DistanceVideo
Solution73.5%Medium
Dynamic Programming, Graph +1· 5 companies
1335. Minimum Difficulty of a Job ScheduleVideo
Solution59.6%Hard
Array, Dynamic Programming· 7 companies
1340. Jump Game VVideo
Solution75.7%Hard
Array, Dynamic Programming +1· 2 companies
1349. Maximum Students Taking ExamVideo
Solution54.8%Hard
Array, Bit Manipulation +3· 3 companies
1359. Count All Valid Pickup and Delivery OptionsVideo
Solution64.9%Hard
Combinatorics, Dynamic Programming +1· 3 companies
1363. Largest Multiple of ThreeVideo
Solution33.2%Hard
Array, Dynamic Programming +1· 1 company
1372. Longest ZigZag Path in a Binary TreeVideo
Solution67.0%Medium
Binary Tree, Depth-First Search +2· 2 companies
1373. Maximum Sum BST in Binary TreeVideo
Solution48.9%Hard
Binary Search Tree, Binary Tree +3· 5 companies
1387. Sort Integers by The Power ValueVideo
Solution71.6%Medium
Dynamic Programming, Memoization +1· 2 companies
1388. Pizza With 3n SlicesVideo
Solution54.4%Hard
Array, Dynamic Programming +2· 1 company
1395. Count Number of TeamsVideo
Solution70.1%Medium
Array, Binary Indexed Tree +2· 4 companies
1397. Find All Good StringsVideo
Solution46.4%Hard
Dynamic Programming, String +1· 2 companies
1402. Reducing DishesVideo
Solution76.8%Hard
Array, Dynamic Programming +2· 3 companies
1406. Stone Game IIIVideo
Solution68.0%Hard
Array, Dynamic Programming +2· 2 companies
1411. Number of Ways to Paint N × 3 GridVideo
Solution80.6%Hard
Dynamic Programming· 8 companies
1416. Restore The ArrayVideo
Solution47.2%Hard
Dynamic Programming, String· 2 companies
1420. Build Array Where You Can Find The Maximum Exactly K ComparisonsVideo
Solution65.3%Hard
Dynamic Programming, Prefix Sum· 2 companies
1425. Constrained Subsequence SumVideo
Solution56.5%Hard
Array, Dynamic Programming +4· 2 companies
1434. Number of Ways to Wear Different Hats to Each OtherVideo
Solution47.0%Hard
Array, Bit Manipulation +2· 3 companies
1444. Number of Ways of Cutting a PizzaVideo
Solution61.8%Hard
Array, Dynamic Programming +2· 1 company
1449. Form Largest Integer With Digits That Add up to TargetVideo
Solution50.2%Hard
Array, Dynamic Programming· 1 company
1458. Max Dot Product of Two SubsequencesVideo
Solution69.4%Hard
Array, Dynamic Programming· 5 companies
1463. Cherry Pickup IIVideo
Solution72.4%Hard
Array, Dynamic Programming +1· 7 companies
1467. Probability of a Two Boxes Having The Same Number of Distinct BallsVideo
Solution61.7%Hard
Array, Backtracking +4
1473. Paint House IIIVideo
Solution60.9%Hard
Array, Dynamic Programming· 3 companies
1477. Find Two Non-overlapping Sub-arrays Each With Target SumVideo
Solution49.5%Medium
Array, Binary Search +3· 1 company
1478. Allocate MailboxesVideo
Solution57.1%Hard
Array, Dynamic Programming +2· 4 companies
1483. Kth Ancestor of a Tree NodeVideo
Solution39.7%Hard
Binary Search, Breadth-First Search +4· 3 companies
1493. Longest Subarray of 1's After Deleting One ElementVideo
Solution71.7%Medium
Array, Dynamic Programming +1· 8 companies
1494. Parallel Courses IIVideo
Solution31.3%Hard
Bit Manipulation, Bitmask +2· 3 companies
Showing 201–250 of 673